Electrical connector
An electrical connector includes a first insulating housing having an erect base board and an erect tongue board extending forwards from a front of the base board, flat terminals molded in the first insulating housing and having a contact portion and a first soldering tail which vertically projects under the base board, a second insulating housing assembled to a right side of the base board, and spring terminals molded in the second insulating housing and having a contact arm and a second soldering tail which vertically projects under the second insulating housing. The contact portions are exposed in a front of a right side of the tongue board and arranged at regular intervals along a vertical direction. The contact arms elastically project sideward out of the right side of the tongue board and are arranged at regular intervals along the vertical direction behind the contact portions.
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1. Field of the Invention
The present invention relates to an electrical connector, and more particularly to an electrical connector which is adapted for being vertically assembled on a circuit board placed levelly.
2. The Related Art
Generally, a traditional electrical connector is often horizontally assembled on a circuit board placed levelly so that results in a large area of the circuit board occupied by the electrical connector and is to the disadvantage of miniaturizing the circuit board. So, an electrical connector adapted for being vertically assembled on the circuit board placed levelly came with the tide of fashion.
The electrical connector generally includes an insulating housing, a plurality of electrical terminals and a shielding shell. The insulating housing has a base portion and a tongue portion protruding forward from a front of the base portion. Left and right sides of the tongue portion define a plurality of terminal grooves each extending rearward into the base portion and penetrating vertically through the base portion. Each electrical terminal has a fastening strip of inverted-L shape, a contact portion and a soldering tail formed from two free ends of the fastening strip. The electrical terminals are divided into two groups and assembled in the terminal grooves of the insulating housing, with the contact portions projecting beyond the left and right sides of the tongue portion and the soldering tails projecting under the base portion to be inserted in the circuit board. However, assembly clearance often exists among the electrical terminals and the insulating housing. As a result, the electrical terminals are apt to loose with respect to the insulating housing, when the electrical connector is connected with a mating connector. It often affects the electrical connection between the electrical connector and the mating connector.
SUMMARY OF THE INVENTIONAn object of the present invention is to provide an electrical connector adapted for being vertically assembled on a circuit board place levelly. The electrical connector includes a first insulating housing, a plurality of flat terminals molded in the first insulating housing, a second insulating housing, a plurality of spring terminals molded in the second insulating housing, and a metal shell enclosing the first insulating housing and the second insulating housing. The first insulating housing has an erect base board and an erect tongue board extending forwards from a front of the base board. Each of the flat terminals has a contact portion and a first soldering tail. The contact portions are exposed in a front of a right side of the tongue board and arranged at regular intervals along a vertical direction. The first soldering tails vertically project under the base board and are arranged at regular intervals along a front-to-rear direction. The second insulating housing is assembled to a right side of the base board of the first insulating housing. Each of the spring terminals has a contact arm and a second soldering tail. The contact arms elastically project sideward out of the right side of the tongue board of the first insulating housing and are arranged at regular intervals along the vertical direction behind the contact portions of the flat terminals. The second soldering tails vertically project under the second insulating housing and are arranged at regular intervals along a front-to-rear direction. The first soldering tails of the flat terminals and the second soldering tails of the spring terminals are further projected under the metal shell to be inserted in the circuit board.
As described above, the flat terminals and the spring terminals are molded in the first insulating housing and the second insulating housing respectively, and then the insulating housings are assembled together, so that avoids an assembly clearance existing among the terminals and the insulating housings. So, the terminals are steady with respect to the insulating housings even if the electrical connector is connected with a mating connector, and a steady electrical connection is realized between the electrical connector and the mating connector.
The present invention will be apparent to those skilled in the art by reading the following description thereof, with reference to the attached drawings, in which:
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A left side of the base board 11 of the first insulating housing 1 and a right side of the second insulating housing 3 define a plurality of buckling fillisters 116, 37. The side plates 52 of the metal shell 5 are punched inward to form a plurality of buckling wedges 57 buckled in the buckling fillisters 116, 37 respectively. Rears of the bottom edges of the side plates 52 of the metal shell 5 protrude downward to form a plurality of fastening feet 58. Bottoms of the base board 11 of the first insulating housing 1 and the second insulating housing 3 protrude downward to form a fastening pillar 115, 36 respectively. The fastening feet 58 and the fastening pillars 115, 36 are inserted in the circuit board to secure the electrical connector erectly on the circuit board. The top plate 51, the side plates 52 and the bottom plate 54 of the metal shell 5 are die-cut inward to form a plurality of resisting arms 56.
As described above, the flat terminals 2 and the spring terminals 4 are molded in the first insulating housing 1 and the second insulating housing 3 respectively, and then the insulating housings 1, 3 are assembled together, so that avoids an assembly clearance existing among the terminals 2, 4 and the insulating housings 1, 3. So, the terminals 2, 4 are steady with respect to the insulating housings 1, 3 even if the electrical connector is connected with a mating connector (not shown), and a steady electrical connection is realized between the electrical connector and the mating connector.
Claims
1. An electrical connector adapted for being vertically assembled on a circuit board place levelly, comprising:
- a first insulating housing having an erect base board and an erect tongue board extending forwards from a front of the base board;
- a plurality of flat terminals each having a contact portion and a first soldering tail, the flat terminals being molded in the first insulating housing, the contact portions being exposed in a front of a right side of the tongue board and arranged at regular intervals along a vertical direction, the first soldering tails vertically projecting under the base board and being arranged at regular intervals along a front-to-rear direction; a second insulating housing assembled to a right side of the base board of the first insulating housing; a plurality of spring terminals each having a contact arm and a second soldering tail, the spring terminals being molded in the second insulating housing, the contact arms elastically projecting sideward out of the right side of the tongue board of the first insulating housing and being arranged at regular intervals along the vertical direction behind the contact portions of the flat terminals, the second soldering tails vertically projecting under the second insulating housing and being arranged at regular intervals along a front-to-rear direction; and a metal shell enclosing the first insulating housing and the second insulating housing, the first soldering tails of the flat terminals and the second soldering tails of the spring terminals further projecting under the metal shell to be inserted in the circuit board; wherein top and bottom of a front of the right side of the base board of the first insulating housing extend rightwards to form a pair of clamping boards of which distal ends protrude towards each other to define a pair of buckling barbs, the second insulating housing has a base portion and a buckling portion protruding forwards from a front of the base portion to be clamped between the clamping boards of the first insulating housing, top and bottom of the buckling portion define a pair of buckling grooves for buckling the buckling barbs therein.
2. The electrical connector as claimed in claim 1, wherein the flat terminal has a first fastening strip curvedly connected between the contact portion and the first soldering tail, the first fastening strip has a horizontal part extending longitudinally with the contact portion forming at a front end thereof in a horizontal step manner, a vertical part of which a bottom end extends downward to form the first soldering tail, and a slant part inclining forward to connect with a rear end of the horizontal part and a top end of the vertical part.
3. The electrical connector as claimed in claim 2, wherein the front of the right side of the tongue board of the first insulating housing defines a plurality of terminal fillisters arranged at regular intervals along the vertical direction for exposing out the contact portions of the flat terminals therethrough.
4. The electrical connector as claimed in claim 1, wherein the spring terminal has a second fastening strip curvedly connected between the contact arm and the second soldering tail, the second fastening strip has a horizontal step part of which a front end extends forward and is inclined sideward to form the contact arm, a vertical part of which a bottom end extends downward to form the second soldering tail, and a slant part inclining forward to connect with a rear end of the horizontal step part and a top end of the vertical part.
5. The electrical connector as claimed in claim 4, wherein a rear of the right side of the tongue board of the first insulating housing defines a plurality of terminal grooves arranged at regular intervals along the vertical direction and each extending longitudinally for receiving the contact arm of the spring terminal therein.
6. The electrical connector as claimed in claim 1, wherein a rear end of the base portion of the second insulating housing protrudes leftwards to form a fastening block, a fastening gap is opened in a rear end of the base board of the first insulating housing for fixing the fastening block therein.
7. The electrical connector as claimed in claim 1, wherein the metal shell has a top plate, two side plates, a rear plate and a bottom plate, the rear plate is covered on backs of the first insulating housing and the second insulating housing, the bottom plate is connected between fronts of bottom edges of the side plates, the soldering tails of the flat terminals and the spring terminals project downward beyond the bottom plate through the back of the bottom plate.
8. The electrical connector as claimed in claim 7, wherein a bottom end of the front of the base board of the first insulating housing is concaved rearward to form an insertion slot penetrating transversely therethrough, the bottom plate of the metal shell is apart located under the tongue board of the first insulating housing with a rear end thereof being inserted in the insertion slot.
9. The electrical connector as claimed in claim 7, wherein a left side of the base board of the first insulating housing and a right side of the second insulating housing define a plurality of buckling fillisters, the side plates of the metal shell are punched inward to form a plurality of buckling wedges buckled in the buckling fillisters respectively.
10. The electrical connector as claimed in claim 7, wherein rears of the bottom edges of the side plates of the metal shell protrude downward to form a plurality of fastening feet, bottoms of the base board of the first insulating housing and the second insulating housing protrude downward to form a fastening pillar respectively, the fastening feet and the fastening pillars are inserted in the circuit board to secure the electrical connector erectly on the circuit board.
11. The electrical connector as claimed in claim 7, wherein the top plate, the side plates and the bottom plate of the metal shell are die-cut inward to form a plurality of resisting arms.
12. An electrical connector adapted for being vertically assembled on a circuit board place levelly, comprising:
- a first insulating housing having an erect base board and an erect tongue board extending forwards from a front of the base board;
- a plurality of flat terminals each having a contact portion and a first soldering tail, the flat terminals being molded in the first insulating housing, the contact portions being exposed in a front of a right side of the tongue board and arranged at regular intervals along a vertical direction, the first soldering tails vertically projecting under the base board and being arranged at regular intervals along a front-to-rear direction; a second insulating housing assembled to a right side of the base board of the first insulating housing; a plurality of spring terminals each having a contact arm and a second soldering tail, the spring terminals being molded in the second insulating housing, the contact arms elastically projecting sideward out of the right side of the tongue board of the first insulating housing and being arranged at regular intervals along the vertical direction behind the contact portions of the flat terminals, the second soldering tails vertically projecting under the second insulating housing and being arranged at regular intervals along a front-to-rear direction; and a metal shell enclosing the first insulating housing and the second insulating housing, the first soldering tails of the flat terminals and the second soldering tails of the spring terminals further projecting under the metal shell to be inserted in the circuit board; wherein the metal shell has a top plate, two side plates, a rear plate and a bottom plate, the rear plate is covered on backs of the first insulating housing and the second insulating housing, the bottom plate is connected between fronts of bottom edges of the side plates, the soldering tails of the flat terminals and the spring terminals project downward beyond the bottom plate through the back of the bottom plate; and wherein rears of the bottom edges of the side plates of the metal shell protrude downward to form a plurality of fastening feet, bottoms of the base board of the first insulating housing and the second insulating housing protrude downward to form a fastening pillar respectively, the fastening feet and the fastening pillars are inserted in the circuit board to secure the electrical connector erectly on the circuit board.
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Type: Grant
Filed: Apr 27, 2012
Date of Patent: Mar 11, 2014
Patent Publication Number: 20130288536
Assignee: Cheng Uei Precision Industry Co., Ltd. (New Taipei)
Inventors: Rong-Qin Lan (Guang-Dong), Li-Jun Xu (Guang-Dong), Ming-Han Lin (New Taipei)
Primary Examiner: Ross Gushi
Application Number: 13/459,077
International Classification: H01R 13/648 (20060101);